INVESTIGATION INTO THE EFFECTIVE PARAMETERS OF COMPRESSIVE AND FLEXURAL STRENGTH OF SOIL CEMENT MATERIALS USING NUMERICAL MODELLING (CASE STUDY: COFFER DAM OF BAKHTIARI DAM)

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TAJDINI M.; HAJIALILUE BONAB M.; HASSANZADEH M.

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Journal: Sharif Journal of Civil Engineering Year:2016 | Volume:32-2 | Issue:3.1 Page(s): 35-46

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Title

INVESTIGATION INTO THE EFFECTIVE PARAMETERS OF COMPRESSIVE AND FLEXURAL STRENGTH OF SOIL CEMENT MATERIALS USING NUMERICAL MODELLING (CASE STUDY: COFFER DAM OF BAKHTIARI DAM)

Author(s)

TAJDINI M. | HAJIALILUE BONAB M. | HASSANZADEH M. | Issue Writer Certificate

Keywords

SOIL CEMENTQ2

UNCONFINED COMPRESSIVE STRENGTHQ1

FLEXURAL STRENGTHQ1

PLASTICITY INDEXQ2

SAND EQUIVALENTQ2

TYPE OF GRADATIONQ2

NUMERICAL MODELINGQ1

Abstract

SOIL CEMENT is a mixture of Portland cement, soil and water, the constituents of which, due to the hydration of cement and compaction, bond together and make a dense and durable composition with low permeability and abrasion resistance. According to the definition of ACI 116R, SOIL CEMENT is a mixture of soil and a certain amount of cement and water which has been compacted to a high density. A more comprehensive definition has been provided in ACI 230 IR, which defines SOIL CEMENT as a hard material with specific engineering properties that is produced by the mixing, compaction and curing of soil, aggregate, Portland cement, additives and water. They are similar to roller compacted concrete; the main difference between them being, however, the type and size of aggregate particles. SOIL CEMENT is principally made of round natural fines, while roller compacted concrete is made of particles with a size of up to 19 mm. The SOIL CEMENT mixture is usually used as protection for earth embankment slopes, while roller compacted concrete is mostly used in massive elements such as gravity dams. All types of soil can be used in SOIL CEMENT construction, except organic and plastic soil and reactive sand. The most efficient soils are those containing 5 to 35% of fines, passing sieve 200. However, soil containing more than 2% organic material is strictly unacceptable. SOIL CEMENT application in dam and pavement construction has grown. Previous studies have investigated the effects of cement content, water to cement ratio, and compaction level, on the strength of SOIL CEMENT mixtures. Some other factors affecting the strength of SOIL CEMENT are pozzolans and chemical additives which are not usually economical for use in large civil projects. In this research, the effects of PLASTICITY INDEX and SAND EQUIVALENT of soils on unconfined compressive and FLEXURAL STRENGTH have been investigated. The results show that the compressive and FLEXURAL STRENGTH of SOIL CEMENT mixtures is dependent on the PLASTICITY INDEX and SAND EQUIVALENT. Also, a numerical model developed for the coffer dam of the Bakhtiari dam, and results, show that its structure is stable with SOIL CEMENT material.

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APA: Copy

TAJDINI, M., HAJIALILUE BONAB, M., & HASSANZADEH, M.. (2016). INVESTIGATION INTO THE EFFECTIVE PARAMETERS OF COMPRESSIVE AND FLEXURAL STRENGTH OF SOIL CEMENT MATERIALS USING NUMERICAL MODELLING (CASE STUDY: COFFER DAM OF BAKHTIARI DAM). SHARIF: CIVIL ENINEERING, 32-2(3.1), 35-46. SID. https://sid.ir/paper/128170/en

Vancouver: Copy

TAJDINI M., HAJIALILUE BONAB M., HASSANZADEH M.. INVESTIGATION INTO THE EFFECTIVE PARAMETERS OF COMPRESSIVE AND FLEXURAL STRENGTH OF SOIL CEMENT MATERIALS USING NUMERICAL MODELLING (CASE STUDY: COFFER DAM OF BAKHTIARI DAM). SHARIF: CIVIL ENINEERING[Internet]. 2016;32-2(3.1):35-46. Available from: https://sid.ir/paper/128170/en

IEEE: Copy

M. TAJDINI, M. HAJIALILUE BONAB, and M. HASSANZADEH, “INVESTIGATION INTO THE EFFECTIVE PARAMETERS OF COMPRESSIVE AND FLEXURAL STRENGTH OF SOIL CEMENT MATERIALS USING NUMERICAL MODELLING (CASE STUDY: COFFER DAM OF BAKHTIARI DAM),” SHARIF: CIVIL ENINEERING, vol. 32-2, no. 3.1, pp. 35–46, 2016, [Online]. Available: https://sid.ir/paper/128170/en

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